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Photovoltaics

Towards the intermediate band

By tailoring the electronic band structure of highly mismatched alloys, researchers have shown clear evidence of the existence of three electronically isolated energy bands, bringing the intermediate-band solar cell one step closer to realization.

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Figure 1: Structure and operation of the IB cell developed at the Lawrence Berkeley National Laboratory in California, USA.

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Luque, A., Martí, A. Towards the intermediate band. Nature Photon 5, 137–138 (2011). https://doi.org/10.1038/nphoton.2011.22

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